Finding the Fourth Proportional to 284,207.70, 392,206.56 and 156,883.26
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Solution
The fourth proportional to 284,207.70, 392,206.56 and 156,883.26 is: 216,498.86
Step by Step Solution
- Step 1: Write the proportion equation
284,207.70 : 392,206.56 = 156,883.26 : x - Step 2: Convert to fraction form
284,207.70/392,206.56 = 156,883.26/x - Step 3: Cross multiply
284,207.70x = 392,206.56 × 156,883.26 - Step 4: Simplify right side
284,207.70x = 61,530,643,726.19 - Step 5: Solve for x
x = 61,530,643,726.19/284,207.70 - Step 6: Final answer
x = 216,498.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.